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| author | Kyungmin Park <kyungmin.park@samsung.com> | 2010-10-21 15:22:36 +0900 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2010-10-25 16:11:16 +0900 |
| commit | 1cf0eb799759b24199374955976fee8469835203 (patch) | |
| tree | 744cd0ca71a58f1e0dc9807c44e648ede6f70fe2 | |
| parent | 57c1f8713605489b3d4914f68a96564858d7c91d (diff) | |
| download | blackbird-op-linux-1cf0eb799759b24199374955976fee8469835203.tar.gz blackbird-op-linux-1cf0eb799759b24199374955976fee8469835203.zip | |
ARM: S5PV310: Add L2 cache init function in cpu.c
This patch adds L2 cache initialization code in cpu.c of ARCH_S5PV310.
It includes TAG and Data latency, Prefetch, and Power configurations.
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Changhwan Youn <chaos.youn@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| -rw-r--r-- | arch/arm/mach-s5pv310/cpu.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pv310/cpu.c b/arch/arm/mach-s5pv310/cpu.c index 5b9790054421..4e3f5be264ef 100644 --- a/arch/arm/mach-s5pv310/cpu.c +++ b/arch/arm/mach-s5pv310/cpu.c @@ -15,6 +15,7 @@ #include <asm/mach/irq.h> #include <asm/proc-fns.h> +#include <asm/hardware/cache-l2x0.h> #include <plat/cpu.h> #include <plat/clock.h> @@ -148,6 +149,28 @@ static int __init s5pv310_core_init(void) core_initcall(s5pv310_core_init); +#ifdef CONFIG_CACHE_L2X0 +static int __init s5pv310_l2x0_cache_init(void) +{ + /* TAG, Data Latency Control: 2cycle */ + __raw_writel(0x110, S5P_VA_L2CC + L2X0_TAG_LATENCY_CTRL); + __raw_writel(0x110, S5P_VA_L2CC + L2X0_DATA_LATENCY_CTRL); + + /* L2X0 Prefetch Control */ + __raw_writel(0x30000007, S5P_VA_L2CC + L2X0_PREFETCH_CTRL); + + /* L2X0 Power Control */ + __raw_writel(L2X0_DYNAMIC_CLK_GATING_EN | L2X0_STNDBY_MODE_EN, + S5P_VA_L2CC + L2X0_POWER_CTRL); + + l2x0_init(S5P_VA_L2CC, 0x7C070001, 0xC200ffff); + + return 0; +} + +early_initcall(s5pv310_l2x0_cache_init); +#endif + int __init s5pv310_init(void) { printk(KERN_INFO "S5PV310: Initializing architecture\n"); |
